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(No Model.)

W. L ADAMS.

PHOTOGRAPHIO DEVELOPING PAN OR TRAY.

No. 289,951. Patented Dec. 11,1883.

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UNITED Snares PATENT IRVING ADAMS, OF MONTCLAIR, XE\Y JERSEY.

PHOTOGRAPHIC DEVELOPING PAN OR TRAY.

SPECIFICATION forming part of Letters Patent No. 289,951, dated December11, 1583 Application filed August 8, 1853.

1'0 (all whom it may concern..-

Be it known that l, W. IRVING IXDAMS, of Montclair, in the county ofEssex and State of New Jersey, have invented a certain new and usefulImprovement in Photographic Developing Pans or Trays, of which thefollowing is a specification.

This improvement consists in a photographic pan or tray made of a singlepiece of glass or like material, having an opening extending from oneend toward but not quite to the other end, thereby leaving a lip at theother end, said opening being adapted to permit the introduction of aphotograpic plate sidewise into the pan or tray, so that when introducedit will extend under the lip, whereby there is formed a well, which,when the pan or tray is stood on end, will hold the liquid used fordeveloping photographic plates.

Inthe accompanying drawings, Figure 1 is a perspective view of adeveloping pan or tray embodying my improvement, and Fig. 2 is alongitudinal section of the same.

Similar letters of reference designate corresponding parts in bothfigures.

This pan or tray is made of glass or like material in one piece. It isvery shallow and of an area large enough to accommodate a photographicplate. At the top it has an open ing, a, which extends from one endnearly but not quite to the other end, thereby forming at the other enda lip, b. The bottom, on its upper surface, is provided with projectionsc, on which a photographic plate may be supported in a positionconsiderably above the upper surface of the bottom. By elevating theplate from the bottom on these projections it is prevented from beingheld to the bottom, as it would otherwise be liableto be held byatmospheric pressure, owing to the smoothness of its surface and thesurface of the bottom of the pan or tray.

This pan or tray will not be liable to leak, may be transparent at allpoints, and can be easily cleaned. Moreover, it is very simple ineonstrucion, and can be cheaplymade.

lVhenthe photographic plate is introduced,

(No model.)

it extends below the lip Z), and the pan or tray is but slightlylargerin horizontal sectionthan the area of the plate. Gonsequentlylessliquidwill be used in developing than would be re quired if the pan or traywere considerably larger than the area of the plate.

When the pan or tray is stood on the end (I, thelip Z),in conjunctionwith tlieparts which it joins, forms a well that will contain the liquidwhich is to be used in developing a photographic plate.

To use the pan or tray, itis stood on thebottom. Then the photographicplate to be developed is introduced sidewise and placed on theprojections c, with which the bottom is provided. The pan or trayis thentilted, so as to cause the liquid contained in it to flow over the upperside or face of the photographic plate, as may be necessary for thedevelopment of the plate desired. \V hen this operationis completed, theplate can be easilylifted from the projections c on which it is supported and removtd.

It is important to construct the pan or tray so that the photographicplate, when introduced, will extend under the lip I), as the pan or traywill then be as short as is possible,and will be more stable when stoodon end than a longer pan or tray would be.

hat I claim as my invention, and desire to secure by Letters Patent, is

A photographic pan or tray made of asingle piece of glass or likematerial, having an opening extending from one end toward but not quiteto the otherend, thereby leaving a lip at the other end, said openingbeing adapted to permit the introduction of a photographie platesidewise into the pan or tray, so that when introduced it will extendunder the lip, whereby there is formed a well, which, when the pan ortray is stood on end, will hold the liquid used in developingphotographic plates, substantially as described.

W. IRTDT G ADAMS.

*itnesses:

H. LITrLEJonx, H. P. SEE, Jr.

